250 



COAL. 



zibar coast. The valleys of rivers falling into 

 the Indian Ocean shonld be carefully examined. 

 The similarity of climate and geographical posi- 

 tion which the province of Sao Paulo, and in- 

 deed the maritime regions of the Brazil gener- 

 ally, present with Eastern Africa, first drew my 

 attention to its vast and various carboniferous 

 deposits, and they are found to correspond with 

 those of the Dark Continent. Messrs Hebmann 

 and Pollock visited a spot near the 'Water of 

 D omnia,' in the Rabai Range, near Mombasah, 

 where antimony 1 is dug. They found no exca- 

 vations, but the people told them to return after 

 the rains, when the ground would be soft. The 

 holes, they say, were rarely deeper than a foot 

 and a half. Captain Guillain (iii. 277) was told 

 that near the village ' M'tchiokara ' ' il existe, 

 presque a fleur de terre, des amas d'une sub- 

 stance metallifere, qui semblerait etre un anti- 

 moniure d'argent, autant qu'il a 6te permis d'en 

 juger par les ^chantillons donnes a nos voya- 

 geurs.' 



The valuable corals are not found at Zan- 

 zibar, but the people sell a thin and white-stem- 



1 I heard also of antimony on the Brazilian coast, op- 

 posite the Island of S. Sebastiao, in the Province of S. Paulo, 

 but I have not seen any specimens of it. 



